Question

this is a simple question…

Does this method can be refactored?

def sum
  total = 0
  [1,2,3,4].each do |num|
    total += num
  end
  total
end

thanks for your help!

Answer 1

[1,2,3,4].inject { |total,num| total= total+num }

OR as per suggestion below it should be

[1,2,3,4].inject(0) { |total,num| total+num }